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combi boiler as gas will suit us for the next 20 years. ASHP would've be ideal, but we felt there was no need to overcomplicate things given access to gas... the panels are primarily to bring our primary energy demand down (in line with the PH principle)
Good stuff. So in the interests of keeping it simple PV > ST
Olly398
Yep, heating will be extremely minimal (currently modelling at 12 kWh per m2), but we'll have underfloor heating downstairs (good for even solar gain distribution) and a combi boiler as gas will suit us for the next 20 years. ASHP would've be ideal, but we felt there was no need to overcomplicate things given access to gas... the panels are primarily to bring our primary energy demand down (in line with the PH principle).
(If it was just me I'd have put PV on the whole of the south facing roof too...)